Hydrolysis Enhancers

When ZeMac® copolymers are used as Hydrolysis Enhancer in a sizing emulsion containing polyurethane or epoxy film formers, amino-silane or epoxy-silane coupling agents, and the sizing emulsion is used to coat glass fibers, beads, mats and fabrics, the reinforced composites in engineering thermoplastics or epoxies using such sized reinforcements exhibit superior mechanical properties as well as excellent retention of these properties known as hydrolysis resistance to anti-freeze radiator fluids.